Hi John,
you have to use an extension pack suitable for 6.1.97, which you can
(usually) get from https://www.virtualbox.org/wiki/Testbuilds - from the
"Development snapshots" section. The 6.1.26 extension pack will not work
with what will eventually be the next major/minor VirtualBox version.
Too many big changes.
Klaus
On 2021-09-20 19:32, John Lumby wrote:
I am running linux-5.14.3 and build VirtualBox from source (in order
to get the VNC server).
I hit known problems building from 6.1.26 source and so tried svn
checkout of current revision 91035.
Build went perfectly including kernel modules.
I then installed the latest 6.1.26 ExtensionPack.
However startvm of any VM fails with this
Oracle VM VirtualBox Headless Interface 6.1.97
(C) 2008-2021 Oracle Corporation
All rights reserved.
Starting virtual machine:
Operation failed: NS_ERROR_FAILURE
Error: failed to start machine. Error message: Failed to construct
device 'usb-ehci' instance #0 (VERR_PDM_DEVHLP_VERSION_MISMATCH)
Is there any way to get an ExtensionPack corresponding to
revision 91035? I don't see that mentioned in the wiki anywhere.
Alternatively is there some code change I can make to the
revision 91035 build that makes it compatible with ExtensionPack-6.1.26?
Or must I lose USB-2?
Cheers, John Lumby
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